Results 71 to 80 of about 977 (190)

Optimizing Chemical & Rheological Properties of Rejuvenated Bitumen [PDF]

open access: yes, 2016
Bitumen has long been a material used in the construction of roadways, yet new pavement only consists of low fractions of recycled materials due to poor compatibility of aged bitumen and new materials.
Haghshenas Fatmehsari, Hamzeh   +3 more
core   +3 more sources

Design, Placement, and Laboratory Evaluation of Rejuvenated Cold Recycled Pavement Mixtures [PDF]

open access: yes, 2023
Cold recycled (CR) pavements, the combination of reclaimed asphalt pavement (RAP) and a recycling agent (foamed or emulsified asphalt binder) at ambient temperatures, can provide a sustainable method to rehabilitate, maintain, and construct roadways ...
Turochy, Elizabeth
core  

Vacuum Residue as Antioxidant and Rejuvenator Agent for Bitumen

open access: yesES Materials & Manufacturing
This research presents a laboratory study on a 100/130 bitumen treated with a vacuum residue (VR), i.e., the residue of vacuum distillation of oil, as a possible effective agent against bitumen aging. The VR was added to the bitumen before aging, in order to evaluate its antioxidant effect, and after aging to evaluate the rejuvenating effect.
Loise, Valeria   +6 more
openaire   +2 more sources

La importancia económica y teológica del lugar de nacimiento de el ibis [PDF]

open access: yes, 2018
The article gives a new explanation for the masses of sacred ibises and their remains inside the Egyptian ibis burial places (Ibiotapheia) especially in Ptolemaic times.
Kessler, Dieter
core   +1 more source

Nano-silica enhanced recycled asphalt mixtures: a sustainable approach to pavement performance optimization

open access: yesDiscover Civil Engineering
Recycled Asphalt Pavement (RAP) utilization faces challenges including performance variability and moisture susceptibility, particularly at higher percentages.
S. Preethi, P. T. Ravichandran
doaj   +1 more source

NEW EXPERIMENTAL APPROACHES TO ANALYSE THE SUPRAMOLECULAR STRUCTURE OF REJUVENATED AGED BITUMENS

open access: yesNEWS of National Academy of Sciences of the Republic of Kazakhstan, 2019
Bitumen aging occurs through volatilization, oxidation and supramolecular assembly variations involving drastic changes in the structure of the material. Due to the ageing process of bitumen and its corresponding increase in viscosity, the stiffness of asphalt pavement is increased during its lifetime.
Michele Porto   +6 more
openaire   +5 more sources

Recycled used cooking oil (UCO) as a rejuvenator in high content reclaimed asphalt pavement (RAP) mixes:A life cycle assessment (LCA) [PDF]

open access: yes
This study investigates the primary data collected at a used cooking oil (UCO) recycling facility to quantify its environmental impact when used as a rejuvenator in high content reclaimed asphalt pavement (RAP) mixes.
Giustozzi, Filippo   +4 more
core   +1 more source

Molecular Dynamics Simulation Insights into Rejuvenating Aged Asphalt with Waste Soybean Oil and Polymers [PDF]

open access: yes
This study utilized molecular dynamics simulations to assess the rejuvenation of aged asphalt (AA) with waste soybean oil (WSO) and functionalized SBS polymers, focusing on: 1) constructing and validating models for virgin asphalt (VA), AA, and composite
Fu, Zhen   +6 more
core   +2 more sources

Sustainable asphalt mixes manufactured with reclaimed asphalt and modified-lignin-stabilized bitumen emulsions [PDF]

open access: yes, 2018
This work aims to develop asphalt mixes with 100 % reclaimed asphalt pavements (RAP) as source of aggregates and bitumen emulsions stabilized by amine-functionalized lignin. To that end, reduced-temperature asphalt technologies between 80 and 130 °C were
García Morales, Moisés   +4 more
core   +3 more sources

Recovering the properties of aged bitumen using bio-rejuvenators derived from municipal wastes [PDF]

open access: yes
Ageing of bitumen leads to significant performance deterioration of asphalt pavements and leads to material properties that are not conducive to recycling.
Airey, Gordon D.   +7 more
core   +2 more sources

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